rf: Factor templateflow.api into classes

Author: effigies

templateflow/_auto.py

@@ -0,0 +1,10 @@
+print('Loading auto')
+
+
+def _load_version():
+    from importlib.metadata import PackageNotFoundError, version
+
+    try:
+        return version('templateflow')
+    except PackageNotFoundError:
+        return '0+unknown'

templateflow/cli.py

@@ -28,10 +28,10 @@
 from pathlib import Path
 
 import click
+from acres import Loader as _Loader
 from click.decorators import FC, Option, _param_memo
 
 from templateflow import __package__, api
-from acres import Loader as _Loader
 from templateflow.conf import TF_AUTOUPDATE, TF_HOME, TF_USE_DATALAD
 
 load_data = _Loader(__package__)